Ecological and environmental consulting are closely related disciplines. The main difference between the two is that the Environmental Consulting is a more overarching field that incorporates many elements of Earth and life sciences, to understand various natural processes. Ecology, on the other hand, is usually more focused on how organisms interact with each other and with their immediate surroundings. An important difference between ecology and environmental science is the goal of research in each discipline. Unlike environmental scientists, ecologists tend to focus their research on very specific populations of living things, such as a certain type of grass or a group of fishes. Ecologists seek to understand how populations interact, reproduce, and thrive within an ecosystem. They concentrate mainly on immediate factors such as food preferences, predation, and sexual selection within a group. Through careful observation and historical research, they explain the developmental and evolutionary adaptations that influence a species and their work is particularly important where development may threaten a species habitat, particularly if the species is rare or endangered.